Average Co-Inventor Count = 3.20
ph-index = 1
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Nippon Telegraph and Telephone Corporation (4 from 5,290 patents)
4 patents:
1. 12185183 - Supporter selection apparatus, supporter selection method and program
2. 12152899 - Guide text generation apparatus, guide system, guide text generation method and program
3. 12123732 - Guide information processing apparatus, guide information processing method and program
4. 11402230 - Navigation system, apparatus and method for generating navigation message